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Post Info TOPIC: Bholghati meteorite


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RE: Bholghati meteorite
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THE BHOLGHATI METEORITE (No. 241 ).

This meteorite fell at about 8-30 A.M., on 29th October, 1905, at Bholgháti village (220 5' N. and 86° 54' E.), Deoli pargana, Morbhanj State, Bengal. According to a statement of Karu Majhi, son of Anupa Majhi, of Bholgháti, forwarded under cover of a letter from His Highness the Maharaja of Morbhanj, " The sky was not cloudy. The meteorites fell almost simultaneously. His attention was first attracted by the noise resembling the roaring (dho-dho-) of the clouds. He looked up and saw two stones approaching the earth. They were not luminous. When they approached further the noise resembled that of rocket (sar-r-r). One of the meteorites fell a few paces off his verandah where he was sitting at the time of the occurrence, and the other in the jungle about 150 yards off his house. He took away the first one as soon as it fell down."
This is the meteoric stone (241·A) which was forwarded and presented to the Geological Survey of India by Mr. P. N. Bose, Geologist to the Morbhanj State, on behalf of the Maharaja. The second piece (241·B), which fell in the jungle close by, was also recovered and is the property of the Morbhanj Museum, but has been lent to the Geological Survey for examination. These two pieces weighed respectively 1,000·6 and 1,578·9 grammes, giving a total of 2,579·5 grammes for the fall.  

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Five analyses from a clast in the Bholghati meteorite fall on an isochron, whose slope is related to the age of the system.
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Title: Carbonaceous chondrite clasts in the howardites Bholghati and EET87513
Author: P. C. Buchanan, M. E. Zolensky, A. M. Reid

Twenty-two carbonaceous chondrite clasts from the two howardites Bholghati and EET87513 were analyzed. Clast N from EET87513 is a fragment classified as CM2 material on the basis of texture, bulk composition, mineralogy, and bulk O isotopic composition. Carbonaceous chondrite clasts from Bholghati, for which less data are available because of their small size, can be divided into two petrologic types: C1 and C2. C1 clasts are composed of opaque matrix with rare coarse-grained silicates as individual mineral fragments; textures resemble CI meteorites and some dark inclusions from CR meteorites. Opaque matrix is predominantly composed of flaky saponite; unlike typical CI and CR meteorites, serpentine is absent in the samples we analyzed. C2 clasts contain chondrules, aggregates, and individual fragments of coarse-grained silicates in an opaque matrix principally composed of saponite and anhydrous ferromagnesian silicates with flaky textures similar to phyllosilicates. These anhydrous ferromagnesian silicates are interpreted as the product of heating of pre-existing serpentine. The carbonaceous chondrite clasts we have studied from these two howardites are, with one notable exception (clast N from EET87513), mineralogically distinct from typical carbonaceous chondrites. However, these clasts have very close affinities to carbonaceous chondrites and have also experienced thermal metamorphism and aqueous alteration, but to different degrees.

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The Bholghati (Howardite) meteorite fell in Orissa, India, on the 29th October, 1905.
A total mass of 2.5 kg was recovered.

22° 5'N, 86° 54'E



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